Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
之前能够连接但是没有图像，打算DFU引导但长时间没反应就断开，结果下一次连接灯没有反应，设备管理器也查不到有连接，3.3v到地测量正常，如何解决。
建议寄回给卖家维修